products

Synonyms in English

Ethylene glycol, 1, 2-ethylenediol, EG for short

chemical characteristics

Chemical formula: (CH2OH)2 Molecular weight: 62.068 CAS: 107-21-1 EINECS: 203-473-3 [5 Melting point: -12.9 ℃ Boiling point: 197.3 ℃

Product introduction and features

CH2OH 2, which is the simplest diol. Ethylene glycol is a colorless, odorless, sweet liquid with low toxicity to animals. Ethylene glycol can be mutually soluble with water and acetone, but its solubility in ethers is small. Used as solvent, antifreeze and synthetic polyester raw material. The polymer of ethylene glycol, polyethylene glycol (PEG), is a phase transfer catalyst and is also used in cell fusion

use

Mainly used for making polyester, polyester, polyester resin, moisture absorbent, plasticizer, surface active agent, synthetic fiber, cosmetics and explosives, and used as a solvent for dyes, inks, etc., preparation of engine antifreeze agent, gas dehydrating agent, manufacturing resin, can also be used for cellophane, fiber, leather, adhesive wetting agent. It can produce synthetic resin PET, fiber PET that is polyester fiber, bottle slice PET for making mineral water bottles and so on. Can also produce alkyd resin, glyoxal, etc., also used as antifreeze. In addition to being used as antifreeze for automobiles, it is also used for the transportation of industrial cooling capacity, generally called carrier refrigerant, and can also be used as condensing agent like water.
Ethylene glycol methyl ether series products are high quality organic solvents, as printing ink, industrial cleaning agent, coating (nitro fiber paint, varnish, enamel), copper coated plate, printing and dyeing solvents and diluents; It can be used as raw materials for chemical products such as pesticide intermediates, pharmaceutical intermediates and synthetic brake fluid. As electrolytes for electrolytic capacitors, chemical fiber dyeing agent for tanning, etc. Used as textile auxiliaries, synthetic liquid dyes, as well as fertilizer and oil refining in the production of desulfurizer raw materials.
Ethylene glycol should be noted when used as a carrier refrigerant:
1. The freezing point changes with the concentration of ethylene glycol in aqueous solution. When the concentration is below 60%, the freezing point decreases with the increase of the concentration of ethylene glycol in aqueous solution, but when the concentration exceeds 60%, the freezing point increases with the increase of the concentration of ethylene glycol, and the viscosity increases with the increase of the concentration. When the concentration reaches 99.9%, its freezing point rises to -13.2℃, which is an important reason why concentrated antifreeze (antifreeze mother liquid) can not be used directly, and must attract the attention of the user.
2. Ethylene glycol contains hydroxyl group, which will be oxidized to glycolic acid and then to oxalic acid, that is, glycolic acid (oxalic acid), containing 2 carboxyl groups, when it works at 80-90 ℃ for a long time. Oxalic acid and its by-products affect first the central nervous system, then the heart, and then the kidneys. Ethylene glycol glycolic acid, causing corrosion and leakage of equipment. Therefore, in the preparation of antifreeze, there must be a preservative to prevent corrosion of steel, aluminum and the formation of scale.

package and transport

B. This product can be used,,25KG，200KG,1000KGBAERRLS。
C. Store sealed in a cool, dry and ventilated place indoors. Containers should be tightly sealed after each use before use.
D. This product should be sealed well during transportation to prevent moisture, strong alkali and acid, rain and other impurities from mixing.